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Finding the Fourth Proportional to 53,282.82, 79,903.30 and 19,984.74

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Solution

The fourth proportional to 53,282.82, 79,903.30 and 19,984.74 is: 29,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,282.82 : 79,903.30 = 19,984.74 : x
  2. Step 2: Convert to fraction form
    53,282.82/79,903.30 = 19,984.74/x
  3. Step 3: Cross multiply
    53,282.82x = 79,903.30 × 19,984.74
  4. Step 4: Simplify right side
    53,282.82x = 1,596,846,675.64
  5. Step 5: Solve for x
    x = 1,596,846,675.64/53,282.82
  6. Step 6: Final answer
    x = 29,969.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.